суббота, 11 января 2014 г., 7:41:16 UTC+4 пользователь Dmitriy B. написал:
> 2014/1/11 <[email protected]>
>
>
> accidentally found that A20 *dram.c can work with A10
>
>
>
> No news here, dram controllers are the same, please dont try to run dramc
> settings from one board on another without checking out original script.bin's
> from manufacturer, you can accidentially setup it so that it will work, but
> you will have unstable system, for example, really cheap boards have low end
> DDR3s, they will not run on 400+MHz, or run and hang on high load.
>
>
>
>
> If you are interested in other similarities within sunxi family, checkout the
> pdf manuals around the wiki and this page http://linux-sunxi.org/Used_IP_cores
>
>
>
>
> Best Regards,
> Dmitriy Beykun
With default manufacturer settings, i have no success with gcc compilation in
Gentoo. All works fine except GCC compilation(allways failed with different
errors).
But with DRAM settings from A20(even overclocked to 480) i have it compiled
last night without errors .
Machine - Mele A100 (A10 \ 512) , CPU-1200, DRAM-480.
Gcc compilation takes 410 minutes .
It seems that DRAM settings from A20 works more stable.
.clock = 480,
.type = 3,
.rank_num = 1,
.density = 1024,
.io_width = 8,
.bus_width = 32,
.cas = 9,
.zq = 0x7f,
.odt_en = 0,
.size = 512,
.tpr0 = 0x42d899b7,
.tpr1 = 0xa090,
.tpr2 = 0x22a00,
.tpr3 = 0x0,
.tpr4 = 0x1,
.tpr5 = 0x0,
.emr1 = 0x4,
.emr2 = 0x10,
.emr3 = 0x0,
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